sys/dev/cgd_crypto.h

   1 /* $NetBSD: cgd_crypto.h,v 1.5 2007/01/21 23:00:08 cbiere Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Roland C. Dowdeswell.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _DEV_CGD_CRYPTO_H_
  33 #define _DEV_CGD_CRYPTO_H_
  34
  35 #ifdef _KERNEL
  36 #define CGD_CIPHER_DECRYPT      1
  37 #define CGD_CIPHER_ENCRYPT      2
  38
  39 typedef void *(cfunc_init)(size_t, const void *, size_t *);
  40 typedef void  (cfunc_destroy)(void *);
  41 typedef void  (cfunc_cipher)(void *, struct uio *, struct uio *, void *, int);
  42
  43 struct cryptfuncs {
  44         cfunc_init       *cf_init;      /* Initialisation function */
  45         cfunc_destroy    *cf_destroy;   /* destruction function */
  46         cfunc_cipher     *cf_cipher;    /* the cipher itself */
  47 };
  48
  49 struct cryptfuncs       *cryptfuncs_find(const char *);
  50 #endif /* _KERNEL */
  51
  52 #endif /* _DEV_CGD_CRYPTO_H_ */